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BUNCH BUILDER FOR SPINNING MACHINES Filed y 1927 2 Sheets-Sheet 1 INVENTOR.

' Jllcn F. (Malian Patented May 29, was. a mfi agg,

' TS erai'r FENCE...

ALLEN F. COULTEB, OF GIRARD, ALABAMA.

BUNCH BUILDER FOR SPINNING MACHINES.

Application filed. May 13, 1927. Serial No. 191,115.

This invention relates to a bunch builder Figure 3 is a top plan view of a bunch for spinning machines, and has for its obbuilder in accordance with this invention. ject to wind the yarn in a more substantia Figure 4 is a fragmentary view in section and level manner at the lower portion of and upon an enlarged scale of the bunch 60 5 the bobbin, than that obtained by bunch builder.

builders now in general use, to materially Figure 5 is a side elevation of the release reduce, when weaving, yarn wastethereby element for the shifting element for the resulting in a saving in. yarncosts, actuator.

A further object of the invention is to Figure 6 is an elevation of the actuator. 65

provide, in a manner as hereinafter set forth, A bunch builder mechanism in accordance a bunch builder for winding the yarn on with this invention is common to a pair of the lower portion of the bobbin in a manner ring rails 7, S of a spinning machine which to overcome the objection when weaving of are arranged in parallelism and substantithe yarn or thread overlapping and falling ally spaced from each other. Each rail has 7 over, which results in entanglement of the connected therewith a set of spaced spindles yarn and waste of that portion of the yarn as indicated at 9. The rails 7, 8 are synon the lower part of the bobbin. chronously shifted in a vertical direction or A further object of the invention is to rather upwardly against the action of a provide, in a manner as hereinafter set forth, counterweighting means therefor which proa' bunch builder for winding the yarn on vides for the rails to move downwardly after the lower portion of the bobbin to prevent reaching the limit of their upward moveretardation of the weaving operation and ments. The rails are intermittently shifted further whereby the yarn or thread will be in an upward direction. carried across the cloth, when weaving, to a The reference character 10 indicates an 30 greater extend than that obtained by bunch inverted yoke-shaped member forming av builders now in general use, under such conpart of the spinning frame and having the ditions providing for a material reduction arms thereof indicated at 11, 12 connected in waste and a substantial saving to the together by a cross piece 18. Journaled in manufacturer. the arms l1, 12, below the cross piece 13 is 85 Further objects of the invention are toa rock shaft 14 formed with a chrank arm provide, in a manner as hereinafter set forth, 15 carrying a counterweight 16. The crank a bunch builder for spinning machines which arm 15 is positioned between the transverse is simple in its construction and arrangecenter and one end of the rock shaft 1%. ment, strong, durable. compact, thoroughly Projecting from the rock shaft 14 in. prox- 9o efficient in its use, readily installed, and comimity to each end thereof is a crank arm paratively inexpensive to set up. which are indicated at 17, 18. The arms With the foregoing and other objects in 17, 18 extend in an opposite direction with. view the invention consists of the novel con respect to the arm 15. The arms 17, 18 are struction, combination and arrangement of arranged inwardly with respect to the side 5 parts as hereinafter more specifically dearms of the yoke 10. The arms l7, 18 are scribed, and illustrated in the accompanying pivotally connected at their free ends, as drawings, wherein is shown an embodiment at 19 to a vertically disposed link 20. One of the invention, but it is to be. understood of the links is pivotally connected to the that changes, variations and modifications rail 7 and the other of the links is pivotally 100 can be resorted to which fall within the connected to the rail 8. Fixed to the rock scope of the claims hereunto appended. shaft 14 and extended therefrom in a direc- In the drawings wherein like reference tion opposite with respect to the direction characters denote corresponding parts of the arm 15 is a rocker member therefor throughout the several views which consists of an elongated bar 21 pro 105 Figure 1 is a side elevation of a bunch vided at its-free end with a cylindrical head builder in accordance with this invention 22 of substantial length and of a diameter and with the mechanism in active position greater than the width of the bar or rod 21. with respect to a pair of ring rails of a spin- The rocker member is of greater length than ning machine. either of the crank arms 17 or 18. An actu- 110 Figure 2 is a view similar to Figure 1 ator element associates with the rocker arm with the mechanism in inactive position. and which in connection with the counterweight 16 provides for an up and down movement simultaneously of the rails 7, 8 during the bunching operation.

Arranged in spaced relat ion with respect to the yoke 10, as well as disposed substantially centrally with respect. thereto, is a vertical support 23 and which in connection with the cross piece 13' supports a rotatable operating shaft 24 for the actuating element for the rocker member. The acthating element will be presently referred to. The shaft 24 in 'jro'xiiiiity to the support 23 carrics a gear wheel which meshes with a driving gear 26 therefor. The gear 26 is carried by a shaft 27, which is joilrnalcd in the support 23, and operated by a prime mover not shown. The shaft 24 is a pro longation ofthe shaft 24 shown in Patent 1,556,814 and carries the usual builder cam.

lVith reference to Figure 4 the shaft 24 has its top formed with a key way of appropriate length and at one end of the key way 28, there is secured to the shaft 24, by a pin 29 a stop 'collar 30. Bodily carried by the shaft 24, so as to rotate therewith, is a sleeve 31 having its periphery formed throughout with a worm thread, as indicated at 32. The sleeve 31 is bodily shifted lengthwise of the shaft 24 in one direction, by a controlling spring 33. The sleeve 31 is coupled to the shaft 24 by a key 34 which is fixed to the sleeve 31 and projects from one end thereof and slides in the key way 28. The collar opposes one end of the sleeve 31 and abutting against the other end ofthe sleeve 31 is thehub 35 of a cam in the form of a circular disk 36 having a fluted or corrugated edge to provide alternately disposed grooves 37 and lobes 38. The grooves 37 are of greater length than the lobes 33. The hub 35 is fixedly secured to the key 34 and the disk 36 is bodily shifted with the sleeve 31 and shaft 24. The shaft 24 provides the actuating element for intermittently rocking or shifting the rock member \Vlllt'lllS carriedv by the rock shaft 14. The shaft 24 at a point spaced from the other end of the key way 28 has secured tl'ierewith, by the pin 39, a collar 40 and interposed between the latter and the disk 36 is the controlling spring 33. The spring normally tends to shift the disk and sleeve 31 in adirection towards the collar 30. The sleeve 31 and disk 36 is shifted against the action of the spring by a shifting element to presently referred to. The disk 36 travels from end to end of the head 22 and on the rotation. of the disk, when travelling from end to end of the head 22, it will intermittently rock the rod or bar 21, under such conditions actuating the rock shaft 14 against the action of its counterweight 16. The disk 36 travels from that; end of the head which is integral with the rod or bar 21 to the other end of the head and then passes thereo'fl. When the disk 36 passes off of the head 22, it-will oppose the free end of the head and will be in the position as shown in Figure 2. By lifting the weight 16, the head 22 is lowered and the spring will shiftthe disk. 36towards the collar 30 to a position above the head 22, then on release of the weight'16 the head 22 will be brought into engagement with the edge of the disk 36;

Mounted on the shaft 24, ata point be: tween the collar 30 and the cross piece 13 is a collar 41, having pivots 42 for a releasing element for the shifting element of the sleeve 31. The shifting element for the sleeve 31 will be presently referred to. The releasing element comprises a yoke 43 having its arms mounted on the pivot 42 and which are angularly disposed with respect to the shaft 24. Depending from the yoke 43 at one side of thecenter of the base 44 thereof is a vertical arm .45 having extended from its lower end a right angularly disposed projection 46 which is arranged below the rod or bar 21 of the rocker member. The arms of the yoke 43 extendtowards the collar 30.

Arranged over the shaft 24, is the shifting element for the sleeve 31, and which consists of bar 47 pivotally connected at one end, as at 48, to the inner side of the cross piece 13 and at a point above the shaft 24. The bar 47, at a point between its transverse median and its forward end carries a de pending yoke 49 which straddles the shaft 24 and pivotally connected to the sides of the yoke 49 are the free ends of the arms of the yoke 43. The bar 47 extends over the sleeve 31 and is formed with a defending taperednose 50 which seats in the threaded periphery 32 of the sleeve 31. The pivots between the yoke 43 and the yoke 29 are indicated at 51. p

The engagement of the nose 50 in the threaded periphery 32 of the sleeve 31 will provide for the shifting of the sleeve 31 in a direction towards the collar 40 during the operation. of the shaft 24, and as the sleeve 31 moves in such direction the disk 36 will be carried therewith. The movement of the sleeve 31 and disk 36 in a direction towards the collar 40 will be had. against the action of the spring 33. The initial position of the elements of the builder is as shown in Figure 1 andthe nose 50 will be arrai'iged in close proximity to the hub 35: As the shaft 24 rotates, the sleeve 31 and disk 36 will be carried in av like direction and owing to the construction of the edge of the disk 36, such edge shifting the head 22, the rock member will be intermittently shifted downwardly to impart a rocking movement to the shaft 14, which in turn will elevate the rails 7, 8 against the action of the countervvei ht passes off the head 22, the control of the traverse is returned to the usual builder cam on shaft 24 of the patent referred to. At

the completion of the winding operation the operator will lift the weight 16 and the spring 33 will then cause the disk 36 to assume the position shown in Figure 1. lvlien' the weight 16 is elevated by the operator, the rod or bar 21 will engage the end 46 of the arm 45, rocking the release element on its pivot in a direction whereby the yoke 43 will be elevated carrying the shifting element therewith, so that the nose 50 will be moved clear of the threaded periphery of the sleeve '31, under such conditions the spring 33 can operate in a manner to shift the disk 36 and sleeve 31 towards the collar 30.

vThe builder is attached to the spinning frame and is connected to the ring rails for the purpose of producing an upward and downward motion in winding the thread around the bobbin. The bobbin, of course, remains stationary and after being wound is removed from the spinning frame.

The operation of the bunch builder, in a manner as stated, will cause the threads to wind on the base' of the bobbin in the form of a figure 8, that is to say in the form of a pair of oppositely extending loops connected together, and such windings will be in a substantial and level manner, so that in weaving, the yarn or threads may be carried across the cloth in a mannerto pre vent it from becoming entangled or to prevent an overlapping or falling over thereof, which results in entanglement and by over coming the latter objection, it will provide for a material reduction in waste and a substantial saving to the manufacturer, therefore it is thought the many advantages of a bunch builder, in accordance with this invention, can be readily understood, and although the preferred embodiment of the invention is as illustrated and described, yet it isto be understood that the changes in the details of construction can be had which will fall within the scope of the invention as claimed.

What I claim is:

1. In a bunch builder for spinning machines a counter-balanced rock shaft provided with a rocker member, a rotatable, spring controlled means riding against and travelling off said member for actuating it to intermittently rock said shaft in one direction during successive thread winding periods against the action of its counterbalance, means for connecting said shaft to a spindle carrying rail for vertically moving the latter on the actuation of said shaft, releasable means engaging with said rotatable means for imparting a sliding action or pull to cause it to travel over and oif and rock said member.

2. In a bunch builder for spinning machines a counterbalanced rock shaft provided with a rocker member, a rotatable, spring controlled means impacting against and travelling on and off said member for actuating it to intermittently rock said shaft in one direction during successive thread winding periods against the action of its counterbalance, means for connecting said shaft to a spindle carrying rail for vertically-moving the latter on the actuation of said shaft, releasable means engaging with said rotatable means for imparting a sliding action thereto to cause it to travel over and rock said member, and means engaged by the rocker member for releasing the means which provides for the sliding of said rotatable means' 3; In a bunch builder for spinning machines, a spindle rail shifting mechanism including a rocker element, an actuating mechanism including a spring controlled rotatable cam device engaging with said elements for intermittently rocking it in one direction to provide for the operation of said shifting mechanism, and means engaging in said actuating mechanism to cause said cam device during the rotation thereof to slide over said element and then off the latter.

4:. In a bunch builder for spinning machines, a spindle rail shifting mechanism including a rocker element, an actuating mechanism-including a spring controlled rotatable cam oevice engaging with, said elements for intermittently rocking it in one direction to provide for the operation of said shifting mechanism, and, means engaging in said actuating mechanism to cause said cam device during the rotation thereof to slide over said element and then oif the latter, and a releasable element operated from said rocker element for said means after said cam device has been moved off said rocker element.

In testimony whereof, I affix my signature herewith.

ALLEN F. COULTER. 

